JP3203235B2 - Rotary power transmission - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a rotary power transmission device.

[0002]

2. Description of the Related Art Conventionally, as means for transmitting rotational power to a place separated by a predetermined distance, a rod-shaped shaft that rotates about an axis, such as a propeller shaft of a car, is generally used. I have. In such a shaft, one end to which power is input and the other end to which power is output have the same rotational motion, and basically, the power input from one end is output directly from the other end. Further, in such a shaft, since the shaft entirely rotates around the axis, one point in the middle of the shaft can be supported by receiving rotation by one bearing.

[0003]

However, in the above-mentioned conventional rotary power transmission means, the rotation of the input power is reduced.
As it is transmitted by the shaft and output as rotational motion
Things. That is, the shaft is
If supported, alone bearings such as one bearing, whereas
Therefore, the load cannot be distributed and supported. Therefore, it is not possible to appropriately cope with a case where the shaft itself becomes heavy or a large load is applied to the shaft, and as a result, there is a problem that power cannot be transmitted efficiently.

Therefore, an object of the present invention is to provide a bearing
Using a shaft that has been turned
When transmitting to the place, the rotational power can be transmitted efficiently
To provide a rotational power transmission device that.

[0005]

To solve the above-mentioned problems, the present invention has the following arrangement. That is, the present invention
A rotating body that rotates about the axis and is provided as a side to which the rotational power is input, and is formed in a rod shape so as to intersect an axis that is an extension of the axis of the rotating body in the middle. Disposed at an angle, one end is fixed to the rotating body at a predetermined distance from the axis of the rotating body, and the other end is provided as a side from which rotational power is output, A rotary power comprising: a shaft having a distance between the midway portion and the one end longer than a distance between the midway portion and the other end; and a fulcrum bearing for receiving and supporting the shaft at the midway portion. Transmission equipment
The one end of the shaft is opposed to the rotating body.
To be rotatable about the axis of the shaft.
Is characterized.

In addition, the rotary member rotates about the axis of the rotary member,
Output side rotation provided as the side from which rotational power is output
And the other end of the shaft is connected to the output side
The rolling element, the predetermined distance from the axis of the rotating body,
The shaft is fixed so that it can rotate around the axis of the shaft.
By doing so, it is possible to output rotational power appropriately and efficiently
It can be transmitted suitably.

The fulcrum bearing is provided in front of the shaft.
An axis which is fixed to the midway and which is perpendicular to the axis of the shaft;
A first rotation axis that rotates about
An axis center of the first rotation shaft, the rotation holding member movably holding the rotation holding member;
And rotating about an axis perpendicular to the axis of the rotating body.
By providing the second rotating shaft, the load on the shaft and the
The load on the shaft can be appropriately distributed and received,
The rotational power can be efficiently and suitably transmitted.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a front view showing an embodiment of the rotary power transmission device according to the present invention. FIG. 2 is a perspective view showing another embodiment of the rotary power transmission device according to the present invention. FIG. 3 is a side view (left side view in FIGS. 1 and 2) showing an embodiment of a fulcrum bearing of the rotary power transmission device according to the present invention.

Reference numeral 10 denotes a rotating body which rotates about an axis and is provided as a side to which rotational power is input. The rotating body 10 of the present embodiment has a shaft 11 a (axial center) provided horizontally, and is rotatably supported by a bearing 13. Further, on the outer periphery of the rotating body 10 on the bearing 13 side, two circumferential grooves 12 into which a belt 14 is fitted are provided, and are formed in a pulley shape. The belt 14 is stretched around the circumferential groove 12 and a belt wheel 18 fixed to the output shaft 17 of the driving device 16. As the driving device 16, for example, a small engine having a high rotation speed and a small torque is used. Rotating body 1
The diameter of 0 is provided to be larger than the diameter of the belt wheel 18, and serves as a speed reduction mechanism that suitably reduces the rotation of the belt wheel 18.

Reference numeral 20 denotes a shaft, which is formed in a rod shape. The shaft 20 is arranged to be inclined so as to intersect an axis 11 which is an extension of the axis of the rotating body 10 at an intermediate portion 22, and one end 21 is provided on the rotating body 10 from the axis of the rotating body 10. is fixed apart a predetermined distance, the other end 23
Is provided as a side from which rotational power is output. In this shaft 20, the distance between the intermediate portion 22 and one end 21 is set longer than the distance between the intermediate portion 22 and the other end 23. Therefore, similar to the principle of leverage, the middle part 22
Becomes a fulcrum, and the force output at the other end 23 can be made larger than the force input at the one end 21. Basic method that can generate large force using the law of moment, which can lift a heavy object of many tons conventionally with a long rod and a tie for a fulcrum by the lever of human power It applies the simple principle. In this embodiment, one end 21 of the shaft 20 is connected to the rotating body 1 by the spherical bearing 15 fixed to the rotating body as shown in FIG.
The shaft 20 is fixed to the shaft 20 so as to be rotatable about the axis of the shaft 20. The one end 21 may be rotatably fitted around an axis in a simple inner cylinder fixed to the rotating body 10.

The shaft 20 according to the present embodiment has the other end 2.
3 is rotatably mounted on an output-side rotator 40 rotatably disposed on the output-side bearing 43 at a predetermined distance from the axis of the output-side rotator 40. Fixed. In the present embodiment, the other end 23 is also axially mounted by a spherical bearing 45 fixed to the output-side rotating body 40, but is fitted into a simple inner cylinder so as to be rotatable around the axis. Is also good.

Numeral 30 denotes a fulcrum bearing, which is a part for receiving and supporting the shaft 20 at a middle part 22 intersecting the axis 11. A fulcrum bearing 30 according to the present embodiment is fixed to a middle portion 22 of the shaft 20 and a first rotation shaft 31 that rotates around an axis orthogonal to the axis of the shaft 20.
And a rotation holding member 33 for rotatably holding the first rotation shaft 31 about an axis perpendicular to the axis of the first rotation shaft 31 and the axis 11 of the rotating body 10. A second rotating shaft 32 that rotates. The two rotating shafts 31 and 32 allow the shaft 20 to incline in all directions, as in the case of the spherical bearing, and to perform a preferable turning motion.

As shown in FIG. 2, the rotation holding member 33 according to the present embodiment is formed in a box shape opened to the left and right.
The rotating shaft 31 can be smoothly rotated by bearings 28 provided on a front portion 34 and a rear portion 35 provided in parallel. The rotation holding member 33 itself includes a second rotation shaft 3 composed of a shaft upper portion 32a extending upward from the upper portion 36 and a shaft lower portion 32b extending downward from the lower portion 37.
It is rotated about the axis of 2. The upper shaft portion 32a and the lower shaft portion 32b are each provided with a bearing 2 disposed on the support portion 38.
8, the second rotation shaft 32 can smoothly rotate about the axis. Note that the shaft 20 and the first rotating shaft 31 may be fixed by welding or the like. In addition, the rotation holding member 33, the upper shaft portion 32a and the lower shaft portion 32b
May be fixed by welding or the like.

According to the fulcrum bearing 30 having the above-described structure, as can be seen from FIG. 3, the shaft 20 does not rotate, and its two ends 21, 22 are centered on the axis 11 (see FIG. 1). Can exercise as if turning. That is, the fulcrum bearing 30 can suitably receive a turning motion in which the shaft 20 rotates so as to twist around the intermediate portion 22. In addition, since the rotating body 10 and the rotating body 40 on the output side rotate around the axis, the shaft 20 rotates relatively to the rotating body 10 and the rotating body 40 on the output side. Accordingly, one end 21 of the shaft is rotatably mounted on the rotating body 10 and the other end 23 of the shaft is rotatably mounted on the rotating body 40 on the output side. According to the fulcrum bearing 30, the load of the shaft 20 or the load is received by the four bearings 28 at one point in the middle portion 22 of the shaft 20. Therefore, the load on the shaft 20 and the load on the shaft 20 can be appropriately dispersed and received, and the rotational power can be efficiently and suitably transmitted.

Reference numeral 48 denotes a balancer, which is located at a position different from the portion where the one end 21 of the shaft 20 of the rotating body 10 is fixed.
It is provided to improve rotational balance. In the present embodiment, the shaft 20 is formed in a substantially conical shape, and is formed hollow so that the weight of the shaft 20 can be appropriately balanced over the entire circumference and a suitable inertial force can be obtained. As shown in FIG. 1, this balancer 48 may be provided not only on the input side but also on the output side. By providing the balancer on both sides, the rotational balance can be further improved. By providing the balancer 48 in this manner, the transmitted rotational movement can be made smooth, and the rotational power can be efficiently and suitably transmitted. In other small devices, a balancer may be provided on each rotating body itself .

Reference numeral 50 denotes a device for receiving power, for example,
It may be a generator or a compressor. Also,
Reference numeral 52 denotes an input portion of the power receiving device, which receives the motion of the other end 23 of the shaft converted into a large force at this portion. In the present embodiment, the energy transmitted by the other end 23 of the shaft is supplied to the magnet 41 fixed to the rotating body 40 on the output side and the magnet 51 fixed to the input section 52 of the power receiving device in a non-contact manner. It is configured to be transmitted. The motion is not limited to this, and the motion may be directly transmitted to the side of the device 50 that receives power from the other end 23 of the shaft. In addition to the above, the use part that is the device 50 that receives the power may be variously conceived. However, any device that transmits power, such as a vehicle power transmission shaft, may be used.
The usage is not limited.

Further, as shown in FIG. 2, reference numeral 60 denotes a support receiving portion of the balancer, which receives the ring portion 49 fixed near the tip of the balancer 48 by a roller 62 or the like so as to be rotatable smoothly. According to this, it is possible to withstand a high load, and it is possible to suitably cope with a large system in which the shaft 20 is set to be long. In the fulcrum bearing 30 according to the above embodiment, the shaft 20 is supported by four bearings, but the present invention is not limited to this. That is, as the fulcrum bearing 30, for example, a spherical bearing may be used. Although various preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. .

[0018]

According to the rotary power transmission device according to the present invention, a shaft formed in a rod shape and inclined so as to intersect an axis line which is an extension of the axis of the rotating body at an intermediate portion. And one end of the shaft is provided with the shaft with respect to the rotating body.
Attached and fixed so that it can rotate around the shaft center of the shaft
I have. Therefore, the shaft is supported by a fulcrum bearing.
Do not rotate the fulcrum bearing without rotating.
And the shaft can be favorably supported. Thus, according to the invention, a shaft bearing in the middle
To transmit rotational power to a place separated by a predetermined distance
In this case, a significant effect is obtained that the rotational power can be transmitted efficiently .

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a rotary power transmission device according to the present invention.

FIG. 2 is a perspective view showing another embodiment of the rotary power transmission device according to the present invention.

FIG. 3 is a side view showing an embodiment of a fulcrum bearing of the rotary power transmission device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Rotating body 11 Axis line 15 Spherical bearing 20 Shaft 21 One end 22 Midway 23 Other end 28 Bearing 30 Supporting point bearing 31 First rotation axis 32 Second rotation axis 33 Rotation holding member 40 Output side rotation body 48 Balancer 50 Powered device

Claims (3)

(57) [Claims] 1. A rotating body that rotates about an axis and is provided as a side to which rotational power is input, and a rod-shaped, halfway part of an axis that is an extension of the axis of the rotating body. Are disposed so as to intersect with each other, one end is fixed to the rotating body at a predetermined distance from the axis of the rotating body, and the other end is provided as a side from which rotational power is output, A rotary power comprising: a shaft having a distance between the midway portion and the one end longer than a distance between the midway portion and the other end; and a fulcrum bearing for receiving and supporting the shaft at the midway portion. In the transmission device, the one end of the shaft is provided with the shaft with respect to the rotating body.
A rotary power transmission device, which is rotatably mounted on and fixed to an axis of the shaft. 2. The method according to claim 1, wherein the rotating body is rotated about an axis thereof.
The rotating body on the output side provided as the side where the power is output
The other end of the shaft is connected to the output side rotating body,
The shaft is separated from the axis of the rotating body by a predetermined distance.
Being fixed so that it can rotate around its axis
The rotary power transmission device according to claim 1, wherein: 3. The first pivot shaft is fixed to the intermediate portion of the shaft and pivots around an axis perpendicular to the axis of the shaft, and the first pivot shaft. A rotation holding member for rotatably holding the shaft is provided with a second rotation axis that rotates about the axis of the first rotation axis and an axis perpendicular to the axis of the rotating body. 3. The method according to claim 1, further comprising:
A rotary power transmission device as described in the above.